CN106847249B - Pronunciation processing method and system - Google Patents
Pronunciation processing method and system Download PDFInfo
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- CN106847249B CN106847249B CN201710056489.8A CN201710056489A CN106847249B CN 106847249 B CN106847249 B CN 106847249B CN 201710056489 A CN201710056489 A CN 201710056489A CN 106847249 B CN106847249 B CN 106847249B
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0091—Means for obtaining special acoustic effects
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
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Abstract
The invention provides a pronunciation processing method and a system, wherein the pronunciation processing method mainly comprises the following steps: acquiring a time interval value of any two adjacent knocking, and judging whether the sound head effect processing is needed or not; and acquiring the difference value of the knocking force of any two adjacent knocking operations, and judging whether the knocking force smoothing processing is needed or not. The invention develops the sound head effect processing and knocking force smoothing processing technology on the rolling technology, so that the rolling effect of the electronic drum is closer to the rolling effect of a real drum, and a drummer or a percussion enthusiast at a common level can play a high-level rolling effect on the electronic drum.
Description
Technical Field
The invention relates to the field of electronic musical instruments, in particular to a method and a system for processing roll-playing pronunciation.
Background
With the development of the electric acoustic musical instrument, the electric acoustic musical instrument not only simulates a real acoustic musical instrument, but also creates a new musical instrument, a new playing mode and new sound based on the electronic characteristics of the electric acoustic musical instrument, thereby bringing more convenience and fun to players.
Recently, the technology of domestic electronic drums is developed rapidly, and the market growth rate is high. With the development of the electronic industry, an electronic drum instrument is also developed, which simulates sound production of a real drum realistically through electricity, and a key component of the electronic drum instrument is a sensor for detecting knocking from a drum head. The electronic control unit converts the drummer's performance into an electrical signal which is transmitted to a sound module programmed to emit digital sounds. The electronic drum musical instrument has the advantages of low purchase price, vivid tone and convenient carrying, so the electronic drum musical instrument is accepted by vast drummers and is often used in recording studios or performance places.
The performance of the electronic drum is composed of a plurality of techniques in which the roll play is important. Wherein, the drum or the cymbal can be beaten quickly and uniformly or with gradually increasing and decreasing force, namely the rolling. However, the rolling effect of the common electronic drum is difficult to approach the rolling effect of the real drum, and the playing performance is directly influenced, so that the electronic drum is really a defect in beauty.
Based on the above, it is necessary to provide a method and a system for processing roll-playing pronunciation of an electronic drum, which can make the tone of the electronic drum more vivid.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a method and a system for processing a roll sound, which are used for solving the problem that the roll effect of an electronic drum in the prior art is difficult to approach the roll effect of a real drum.
To achieve the above and other related objects, the present invention provides a roll-over pronunciation processing method, comprising: step S1: acquiring and storing a time value or/and a knocking force value of a plurality of times of knocking; step S2, including: acquiring a time interval value of any two adjacent knocking, judging whether the time interval value is smaller than a preset time interval value, if so, performing sound head effect processing on the any two adjacent knocking, and if not, ending the processing; or/and: and acquiring the difference value of the knocking force of any two adjacent knocking processes, judging whether the difference value of the knocking force is smaller than a preset difference value of the knocking force, if so, performing the smoothing processing on the knocking force of any two adjacent knocking processes, and if not, finishing the smoothing processing.
Preferably, in the step S2, the preset time interval value is 60 to 125 ms.
Preferably, in the step S2, the preset difference value of the knocking force is 15-25%.
Preferably, in step S3, the sound head effect processing is performed on any two adjacent taps.
Preferably, in the step S2, the arbitrary two adjacent taps are processed by an envelope and digital filter process or an effector process.
Preferably, in step S2, the method for smoothing the tapping force includes: and taking the knocking force value of the next knocking in any two adjacent knocking operations and the knocking force values of a plurality of preset knocking operations in front of the knocking force value and averaging the values, and taking the average value as the knocking force value of the next knocking operation.
Preferably, in the step S2, the preset number of taps is 2 to 5 taps.
Preferably, in step S2, the average value is obtained by a simple average method, a geometric average method, a harmonic average method, a weighted average method, a moving average method or an exponential average method.
The present invention also provides a roll-over pronunciation processing system, comprising: the data processing module is used for acquiring and storing time values or/and knocking force values of a plurality of times of knocking; the knocking judgment module is used for acquiring a time interval value or/and a knocking force difference value of any two adjacent knocking, and judging whether the sound head effect processing or/and the knocking force smoothing processing are required; the sound effect processing module is used for acquiring the sound head effect processing parameter or/and the knocking force smoothing processing parameter and sending the sound head effect processing parameter or/and the knocking force smoothing processing parameter to the pronunciation processing module; and the pronunciation processing module is used for forming synthesized voices and outputting corresponding audio signals.
Preferably, the roll pronunciation processing system further comprises: the digital-to-analog conversion module is used for performing digital-to-analog conversion on the audio signal and transmitting the converted audio conversion signal to the audio output module; and the audio output module is used for storing the audio conversion signal and playing voice by using the audio conversion signal, so that the central processing unit can process and control the playing of the audio file.
Preferably, the data processing module, the knocking judgment module and the sound effect processing module are realized through a central processing unit, and the pronunciation processing module is realized through a digital signal processor.
Preferably, in the knocking judgment module, a time interval value between any two adjacent knocking is obtained, and if the time interval value is smaller than a preset time interval value, the sound head effect processing is performed on the any two adjacent knocking; or/and obtaining the difference value of the knocking force of any two adjacent knocking processes, and if the difference value of the knocking force is smaller than the preset difference value of the knocking force, performing the smoothing processing on the knocking force of any two adjacent knocking processes.
As described above, the roll-over pronunciation processing method and system of the present invention have the following beneficial effects:
in order to enable the electronic drum to have better performance, the invention develops the technology of processing the sound head effect and smoothing the knocking force on the rolling technology, so that the rolling effect of the electronic drum is closer to the rolling effect of a real drum, and a drummer or a percussion enthusiast in the general level can play a high-level rolling effect on the electronic drum.
Drawings
Fig. 1 is a schematic diagram illustrating a roll-over pronunciation processing method according to the present invention.
Fig. 2 is a schematic diagram illustrating the effect of processing the sound head effect according to the present invention.
FIG. 3 is a diagram illustrating the effect of the force smoothing process according to the present invention.
Fig. 4 is a schematic diagram of the roll-over pronunciation processing system of the present invention.
Fig. 5 shows a schematic diagram of a 4-segment envelope curve for a simulated sound.
Description of the element reference numerals
1 CPU
2 DSP
3D/A conversion module
4 audio output module
5 Drum disk
6 push-button
7 display
11 data processing module
12 knocking judgment module
13 sound effect processing module
21 pronunciation processing module
S1-S5
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Please refer to fig. 1 to 4. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Example one
As shown in fig. 1, the present embodiment provides a method of a roll pronunciation process, the method of the roll pronunciation process including:
s1: acquiring time values and knocking force values of a plurality of times of knocking; s2: acquiring a time interval value of any two adjacent knocking, and judging whether the time interval is smaller than a preset time interval value or not; if yes, go to step S3; if not, ending; s3: performing sound head effect processing on any two adjacent knocking; s4: acquiring a difference value of the knocking force of any two adjacent knocking, and judging whether the difference value of the knocking force is smaller than a preset difference value of the knocking force; if yes, executing step S5, otherwise, ending; s5: and performing knocking strength smoothing treatment on any two adjacent knocking.
Specifically, step S1: and acquiring time interval values and knocking force difference values of a plurality of times of knocking. The plurality of times are to store the time interval value and the tapping force difference value of the most recent multiple taps, in this embodiment, data within 10 times, for example, 10 times, 9 times, 8 times … … 3 times, etc., are selected, and the previous values are continuously discarded to reduce data redundancy.
Step S2: acquiring a time interval value of any two adjacent knocking, and judging whether the time interval value is smaller than a preset time interval value or not; if yes, go to step S3; if not, the process continues to step S1.
As an example, in step S1, the preset time interval value is 60 to 125ms, and preferably 120 ms.
Step S3: and carrying out sound head effect processing on any two adjacent knocking.
As an example, in step S3, the sound head effect processing is performed on the adjacent two taps.
Specifically, if the determination result in the step 2 is yes, the CPU sends a sound head effect processing parameter to the DSP, and the DSP performs sound head effect processing. Fig. 2 is a sound head effect processing effect diagram, and the DSP performs effect processing on the sound head, so that the sound head has a weaker starting ratio and is closer to the effect of knocking a real drum.
The sound head effect processing is a general name of enveloping, filtering and effect processor processing. The processing of the sound head effect in the DSP of the invention can adopt one or the combination of more than two of enveloping, digital filter processing and various effectors to process the roll-over. Preferably, the roll-in can be processed using a combination of envelopes, digital filter processing, and various effectors.
As shown in fig. 5, each tone sample of the present invention includes attack (attack), decay (decay), sustain (sustain) and release (release), the first letter of the 4-segment name is taken, and the 4-segment envelope is also called ADSR envelope, which specifically includes:
1) attack (attack): this determines how much time is required for the sound to reach the initial maximum volume from the beginning, which is very short in the percussion timbre.
2) Attenuation (decay): the time length of attenuation immediately after the sound reaches the maximum volume is the volume kept behind.
3) Maintenance (sustatin): this stage determines the volume hold after the fade, which is not representative of the amount of time it takes to hold, unlike the other three, which are figuratively that the volume when the keyboard is pressed without loosing hands, the duration of the sound is the hold determination, and how long it takes to hold, so it is not representative of the amount of time. The volume is usually kept below the maximum volume of the attack, but there are also cases where the volume is the same or even above the attack volume.
4) Release (release): this is the final stage of the sound, representing the length of time that the sound decays gradually from the maintained volume to a 0 level (minimum volume).
General envelope processing: such as processing a piano tail, a repeated piece of sound is processed to fade-out through envelope processing.
The envelopment processing of the invention means that the starting sound is slowly raised by controlling the slope of the starting sound of the drum sound color samples, so that the starting sound ratio of a sound head is weaker and is closer to the rolling effect of knocking a real drum.
A general filtering process, such as a filtering process performed on an instrument before outputting, is performed to enhance or attenuate high and low frequencies to more approximate the timbre of the instrument. The digital filter is a circuit or an operation processing system with a frequency selection function, has the functions of filtering noise and separating various signals, and is mainly used for frequency, for example, the high pitch of a sound head is more, the high frequency in the sound head is filtered out by adopting the digital filter, so that the volume of the sound head is reduced, the starting ratio of the sound head is weaker, and the sound head is closer to the rolling playing effect of a real drum.
In general, an effect processor, for example, in an electronic musical instrument, subjects an acoustic guitar musical instrument to a distortion effect processing to obtain a distorted guitar. The audio dynamic processing of the compressor, the equalizer and the like is adopted in the effect processor processing, and the principle of the audio dynamic processing is to weaken the sound head and weaken the sound head.
Step S4: acquiring a difference value of the knocking force of any two adjacent knocking, and judging whether the difference value of the knocking force is smaller than a preset difference value of the knocking force; if so, it is considered to be a roll, and step S5 is executed, and if not, it is considered not to be a roll, and the process ends.
As an example, in the step S3, the preset difference value of the knocking force is 15 to 25%, and preferably 20%.
Step S5: and performing knocking strength smoothing treatment on any two adjacent knocking.
By way of example, the method of the tap strength smoothing process includes: and taking the knocking force value of the next knocking in any two adjacent knocking operations and the knocking force values of a plurality of preset knocking operations in front of the knocking force value and averaging the values, and taking the average value as the knocking force value of the next knocking operation. As an example, the preset times of knocking are 2-5 times.
Preferably, the preset taps are 3 taps. That is, when the tap is judged to be a roll, the CPU stores the value of the tapping force of the next tap of any two adjacent taps plus the value of the tapping force of the previous tap, and performs simple averaging to obtain an average, and the average is transmitted to the DSP as the value of the tapping force of the next tap to be enunciated. Fig. 3 is a force smoothing graph, and as shown in fig. 3, the tapping force value is smoothed to have a better playing effect.
In other examples, the averaging process may be performed by a geometric averaging method (n-th power of the product of multiplication of n values), a harmonic averaging method (reciprocal of the average of the reciprocal of a variable), a weighted averaging method, a moving averaging method (moving average), an exponential averaging method, or the like, in addition to the simple averaging method.
The invention firstly judges whether the knocking constitutes the rolling, and then only carries out the sound head effect processing or/and the force smoothing processing on the pronunciation constituting the rolling, so that the rolling effect of the electronic drum is closer to the rolling effect of the real drum.
Of course, in other embodiments, only steps S1 to S3 may be performed to perform only the sound head effect processing; or only the step S1 and the steps S4 to S5 are executed, and only the knocking strength smoothing processing is performed, which also enables the electronic drum to have better performance, and therefore, the method is not limited to the specific scheme enumerated in the example.
Example two
As shown in fig. 4, the present embodiment provides a roll pronunciation processing system including at least:
the data processing module is used for acquiring and storing time values and knocking force values of a plurality of times of knocking;
the knocking judgment module is used for acquiring a time interval value and a knocking force difference value of any two adjacent knocking, and judging whether the sound head effect processing and the knocking force smoothing processing are required or not;
the sound effect processing module is used for acquiring the sound head effect processing parameter and the knocking force smoothing processing parameter and sending the sound head effect processing parameter and the knocking force smoothing processing parameter to the pronunciation processing module;
the pronunciation processing module is used for generating a digital audio signal in response according to the obtained effect parameters and the strength;
the digital-to-analog conversion module is used for converting the digital audio signal into an analog audio signal and sending the analog audio signal to the audio output module;
and the audio output module is used for amplifying the analog audio conversion signal and matching with the responding output equipment, such as a loudspeaker, an earphone and the like.
As an example, in the knocking judgment module, a time interval value of any two adjacent knocking is obtained, and if the time interval value is smaller than a preset time interval value, the sound head effect processing is performed on the any two adjacent knocking; or/and obtaining the difference value of the knocking force of any two adjacent knocking processes, and if the difference value of the knocking force is smaller than the preset difference value of the knocking force, performing the smoothing processing on the knocking force of any two adjacent knocking processes.
As an example, as shown in fig. 4, the present example provides a roll-over pronunciation processing system including: the device comprises a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a digital-to-analog conversion module and an audio output module. The central processing unit at least comprises a data processing module, a knocking judgment module and a sound effect processing module. And the data processing module is used for acquiring and storing the time value and the knocking force value of a plurality of times of knocking. And the knocking judgment module is used for acquiring the time interval value and the knocking force difference value of any two adjacent knocking operations and judging whether the sound head effect processing and the knocking force smoothing processing are required. And the sound effect processing module is used for acquiring the sound head effect processing parameter and the knocking force smoothing processing parameter and transmitting the parameters to the pronunciation processing module.
In this example, the electronic drum has a plurality of drums and a sensor located below the drum 5, and the sensor is used for detecting vibration generated when the drum is knocked, acquiring signals such as knocking strength, rhythm and time value according to the vibration, and converting the signals into musical tones with tone color, volume and rhythm after subsequent processing.
For example, when a certain drum is knocked, the CPU detects a signal on the drum sensor, determines which drum is knocked according to the signal data, and acquires a corresponding knocking time value and knocking force value, and then acquires tone color sample information corresponding to the knocked drum and transmits the tone color sample information and the knocking force value to the DSP. Meanwhile, the example also obtains a time interval value and a knocking force difference value of any two adjacent knocking, judges whether the sound head effect processing and/or the knocking force smoothing processing needs to be carried out, and transmits sound head effect processing parameters and/or the knocking force value subjected to the knocking force smoothing processing to a pronunciation processing module of the DSP if the sound head effect processing and/or the knocking force value needs to be carried out.
In this embodiment, the Central Processing Unit (CPU) performs all functions, including key pressing, display, drum tapping detection, music decoding, and the like, except for the sound generation processing, which is performed by a Digital Signal Processor (DSP). The digital signal processor at least comprises a pronunciation processing module. And the pronunciation processing module is used for outputting corresponding digital audio signals. The DSP obtains corresponding sample sound from the tone data according to the tone sample information obtained from the CPU, such as the address information of the tone sample, performs corresponding sound processing calculation, and sends out corresponding volume according to the tapping force value.
For example, the audio output module is a power amplifier, which is called a power amplifier for short, and amplifies a weak electrical signal from a signal source to drive a speaker to emit sound.
In summary, in order to make the electronic drum have better performance, the invention develops the technology of processing the sound head effect and smoothing the knocking force on the rolling technology, so that the rolling effect of the electronic drum is closer to the rolling effect of the real drum, and a drummer or a percussion fan at a common level can play a high-level rolling effect on the electronic drum. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A roll-over pronunciation processing method, characterized in that the roll-over pronunciation processing method comprises:
step S1: acquiring and storing a time value or/and a knocking force value of a plurality of times of knocking;
step S2, including:
acquiring a time interval value of any two adjacent knocking, judging whether the time interval value is smaller than a preset time interval value, if so, performing sound head effect processing on the any two adjacent knocking, and if not, ending the processing; the sound head effect processing is to process the roll-over by adopting one or the combination of more than two of enveloping, digital filter processing and effect processor processing, wherein the enveloping processor processing is to control the slope of the beginning of the drum sound sample to make the beginning rise slowly, so that the beginning ratio of the sound head is weaker, the digital filter processing is to filter and remove high frequency in the sound head, so that the volume of the sound head is reduced, the beginning ratio of the sound head is weaker, and the effect processor processing is audio dynamic processing to weaken the sound head;
or/and:
acquiring a difference value of the knocking force of any two adjacent knocking processes, judging whether the difference value of the knocking force is smaller than a preset difference value of the knocking force, if so, performing the smoothing processing on the knocking force of any two adjacent knocking processes, and if not, finishing the smoothing processing; the method for smoothing the knocking strength comprises the following steps: and taking the knocking force value of the next knocking in any two adjacent knocking and the knocking force values of a plurality of previous knocking as average values, and taking the average value as the knocking force value of the next knocking.
2. The roll-over pronunciation processing method according to claim 1, characterized in that: in the step S2, the preset time interval value is 60 to 125 ms.
3. The roll-over pronunciation processing method according to claim 1, characterized in that: in the step S2, the difference value between the preset knocking forces is 20 to 50%.
4. The roll-over pronunciation processing method according to claim 1, characterized in that: in step S2, the average value is obtained by a simple average method, a geometric average method, a harmonic average method, a weighted average method, a moving average method, or an exponential average method.
5. A roll-over pronunciation processing system, the roll-over pronunciation processing system comprising:
the data processing module is used for acquiring and storing time values or/and knocking force values of a plurality of times of knocking;
the knocking judgment module is used for acquiring a time interval value or/and a knocking force difference value of any two adjacent knocking, and judging whether the sound head effect processing or/and the knocking force smoothing processing are required; the knocking judgment module acquires a time interval value of any two adjacent knocking operations, and if the time interval value is smaller than a preset time interval value, the sound head effect processing is carried out on the any two adjacent knocking operations; or/and obtaining a knocking force difference value of any two adjacent knocking processes, and if the knocking force difference value is smaller than a preset knocking force difference value, performing knocking force smoothing on the any two adjacent knocking processes; the method for smoothing the knocking strength comprises the following steps: taking the knocking force value of the next knocking in any two adjacent knocking operations and the knocking force values of a plurality of preceding knocking operations as average values, and taking the average values as the knocking force values of the next knocking operations; the sound head effect processing is to process the roll-over by adopting one or the combination of more than two of enveloping, digital filter processing and effect processor processing, wherein the enveloping processor processing is to control the slope of the beginning of the drum sound sample to make the beginning rise slowly, so that the beginning ratio of the sound head is weaker, the digital filter processing is to filter and remove high frequency in the sound head, so that the volume of the sound head is reduced, the beginning ratio of the sound head is weaker, and the effect processor processing is audio dynamic processing to weaken the sound head;
the sound effect processing module is used for acquiring the sound head effect processing parameter or/and the knocking force smoothing processing parameter and sending the sound head effect processing parameter or/and the knocking force smoothing processing parameter to the pronunciation processing module;
and the pronunciation processing module is used for forming synthesized voices and outputting corresponding audio signals.
6. The roll-over pronunciation processing system according to claim 5, wherein: the data processing module, the knocking judgment module and the sound effect processing module are realized through a central processing unit, and the pronunciation processing module is realized by a digital signal processor.
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| CN103827965A (en) * | 2011-07-29 | 2014-05-28 | Dts有限责任公司 | Adaptive voice intelligibility processor |
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| CN103325365A (en) * | 2012-03-19 | 2013-09-25 | 卡西欧计算机株式会社 | Sound generation device and sound generation method |
| CN103325364A (en) * | 2012-03-19 | 2013-09-25 | 卡西欧计算机株式会社 | Sound-generation controlling apparatus and a method of controlling the sound-generation controlling apparatus |
| JP5516764B2 (en) * | 2013-01-16 | 2014-06-11 | カシオ計算機株式会社 | Electronic musical instruments |
| CN103928018A (en) * | 2014-04-18 | 2014-07-16 | 山西四和创想科技有限公司 | Wireless intelligent electronics drumstick for exercises |
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